power



2 Sheets-Sheet 1.

(No Model.)

A. D. POWER.

GAS TRAP FOR TUYERES AND GONDUGTING PIPES.

Patented Jan. 29, 1889.

fizz/6222 67 mmuum U K -TwE N PETERS Fholo-Llllwgmpher. Wauhingmn, D. c,

(No Model.) 2 Sheets-Sheet z.

A. D. POWER.

GAS TRAP FOR TUYERES AND CONDUCTING PIPES. 1

N0. 396,765. Patented Jan. 29, 1889.

NY PETERS. FllMu-Ulhagrapher, Washin ton. D. C

UNITED STATES PATENT @EETEE.

AUG STI S D. POlVER, OF AKRON, Ol-IIO, ASSIGNOR OF ONE-HALF TO EDlVARD A. STOUFFER, OF SAME PLACE.

(BAS -TRAP FOR TUYERES AND CONDUCTING-PIPES.

SPECIFICATION forming part of Letters Patent No. 396,765, dated January 29, 1889.

Application filed January 30, 1888. gerial No. 262,326. (No model.)

To all 10710112 it may concern:

Be it known that I, AUGUSTUS I). POWER, of Akron, county of Summit, and State of Ohio, have invented a new and useful Improvement in (Bias-'lraps for Tuyeres and Conducting-lfipes, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, making part of this specification.

My invent-ion relates to an improved gastrap for tuyeres and other tubes or pipes; and it consists ot'a trap or shell located in the conducting-pipe and provided with inlet, outlet, and escape ports, and a weighted valve arranged to operate automatically under theaction of the blast to open the inlet-port and close the gas-escape port, and to reverse its action and close the inlet-port and open the gas-escape port when the blast ceases, thereby avoiding the danger of explosion and preventing the loss of time and property resulting therefrom.

It further consists in certain details ot'eonstruction and arrangement of parts, all as hereinafter described and claimed.

In the accompanying drawings, Figure 1 represents a vertical section tl'lrough m y improved trap, showing the inlet-port open and the gas-escape port closed. Fig. 2 shows the gas-escape side of the trap in elevation. Fig. 3 is a vertical section similar to Fig. l, but with the inlet port closed and the gas escape port open; and Fig. 4: represents a horizontal section taken on the line 4 4, Fig. 1.

A indicates the case or shell of the trap, which may constitute a section of the pipe or shell forming the tuyere, and is provided at its blast-receiving end with a flange, a, through which it is attached to the adjacent end or section of the conducting-pipe, and at its discharge end with a similar flange, a, through which the discharge end or .nozzle of the tuyere is attached to it. It may also be attached at either end with socket-joints.

A indicates the inlet-port, A the outletport or nozzle end of the trap, and A the gasescape port. The walls of the inlet and gasescape ports extend into the shell in the form of flanges, the inner edges of which form seats for a valve, B, and are adapted to receive packing-rings c c, of rubber or other suitable material, extending beyond the seat-flanges, and by the proper adjustment of which the val ve B may be made to lie snugly against its seat at all points, and the valve 13 may be provided with packing-rings I) Z) on its sides adjacent to its periphery to eo-operate with the rings 0 c in mztking snug joints. The valve B is made of larger diameter than the ports in the shell A, and the latter is provided with an eccentricenlargement or groove on one side at u? to permit the introductiol'i of the valve into the shell.

The valve l l is made, preferably, in circular or disk form, conforming in shape to the form of the inlet and gas-escape ports, as shown,

and provided on its sides, adjacent to its outer edge, with pack lug-rings b b, as explained, and has a central perforated hub, b fora purpose which will appear. It is provided at B with a shank having a sleeve upon its outer end, through which apivot-pin, cl, passes for connecting it with suitable perforated lugs or thickened portions a? on the inclined escapeport side of the shell and above said port, as shown. The pivot-pin Z is made of slightly less diameter than the perforations therefor in the shank T3 and lugs u" to permit sui'iicient play of the valve to adapt it to seat itself snugly, and to prevent the escape of gas or air through such enlarged perforations in the lugs or cars a the pin (Z is shortened, as shown in Fig. l, and short plugs (l are driven into the outer ends of said perforations, snugly filling said ends and preventing the escape of air or at said points.

The central perforation in the hub or valve B is screw-threaded to receive the inner screwthreaded end of a curved rod, stem, or lever, E, which projects through the escape-port A and has a weight, F, secured to its outer end. The weight F is preferably made cylindrical in form and provided with an eccentric longitudinal perforation to receive the end of the stem E, upon which it is secured by means of a set-screw, e, permitting its adjustment. The weight E is intended. to counterbalance the weight of thevalve and to be just sufficient when the blast ceases to swing the valve up into position to close the inlet-port A from the tuyere, and so prevent the passage of the gas through said port back into IOO the pipe through which the blast is conducted to the tuyere, and to throw open the gas-escape port A and permit the escape of the gas. The valve is so nearly balanced, however, that the moment the blast is applied it forces the valve away from its seat 011 the inlet-port A and down upon its seat on the gas-escape port A closing the latter and directing the blast through the outlet-port"A to the furnace. The port A as shown, is inclined slightly from a vertical plane, for adapting the blast to hold it more firmly on its seat thereon, and the curved rod or stem E, when the valve rests on said port, serves to bring the weight almost vertically over the valve-hinge, so that by turning the eccentric weight on said stem it can be so adjusted that a very light blast Will hold the valve firmlyin position to close said port.

By the construction and arrangement of parts as described the trap is made automatic in its action, both in closing the gas-escape and opening the inlet-port to admit the blast, and in closing the inlet-port when the blast ceases and opening the gas-port to permit the escape of the gas.

Having now described my invention, I claim as new 1. A gas-trap for comlucting-pipes and tuyeres, provided with inlet, outlet, and escape ports, in combination with a valve having the curved arm or stem extending outward through the escape-port and provided with an adjustable weight, all arranged and operating substantially as described.

2. The combination, with a gas-trap for conducting-pipes and tuyeres, of a pivoted valve arranged to work automatically under the action of the blast to open one port and close another and a curved and weighted arm or stem attached centrally to and extending outward from said valve through one of said ports, substantially as described.

3. A gas-trap for conducting-pipes and tuyeres, provided with an inclined escape-port, in combination with a valve adapted to be operated by the action of the blast for closing said port and a curved arm or stem attached to said valve and projecting outward through said inclined escape-port for returning said valve to close the inletport, substantially as described.

4. The combination, with the'gas-trap and the escape-port thereof, of the pivoted valve and the stem or lever projecting-through the escape-port and bent or curved in such manner and form that its upper end will lie in approximately the same vertical plane as the hinge or pivotal joint of the valve when the escape-port is closed, said stem or lever being provided at its upper end with an adjustable weight, all as and for the purpose described.

5. The combination, with the gas-trap casing A, provided with the ports A and A and the integrally formed inwardlyprojecting flanges surrounding said ports, of the packing-rings c and c, surrounding said flanges and projecting beyond the inner faces or edges thereof, the double-acting valve provided on both sides with packing h and b, and a weighted arm for automatically operating said valve, substantially as and for the purpose described.

6. In a gas-trap for conducting-pipes and tuyeres, the combination, with the valve and its stem, of the eocentrically perforated weight mounted on and adjustable around said stem, and provided with the set-screw for holding said weight when adjusted on said stem, substantially as described.

7. The gas-trap shell formed in one piece and provided with the inlet, outlet, and escape ports, one of said ports having the grooved extension to admit the valve, substantially as described.

111 testimony whereof I have hereunto set my hand this 27th day of January, A. D. 1888.

AUGUSTUS D. POWER. 

